Viewing file:  auth7.c (1.14 KB) -rw-r--r--
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#define TEST_NAME "auth7"
#include "cmptest.h"
static unsigned char key[32];
static unsigned char c[600];
static unsigned char a[64];
int
main(void)
{
size_t clen;
for (clen = 0; clen < sizeof c; ++clen) {
crypto_auth_keygen(key);
randombytes_buf(c, clen);
crypto_auth_hmacsha512(a, c, clen, key);
if (crypto_auth_hmacsha512_verify(a, c, clen, key) != 0) {
printf("fail %u\n", (unsigned int) clen);
return 100;
}
if (clen > 0) {
c[(size_t) rand() % clen] += 1 + (rand() % 255);
if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
printf("forgery %u\n", (unsigned int) clen);
return 100;
}
a[rand() % sizeof a] += 1 + (rand() % 255);
if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
printf("forgery %u\n", (unsigned int) clen);
return 100;
}
}
}
crypto_auth_keygen(key);
crypto_auth_hmacsha512(a, guard_page, 0U, key);
assert(crypto_auth_hmacsha512_verify(a, guard_page, 0U, key) == 0);
return 0;
}
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